<!DOCTYPE html>
<html>

<head>
    <style>
        /* * {
            margin: 0px;
            padding: 0px;
        } */

        body {
            width: 200px;
            height: 200px;
        }
        #container {
            display: flex;
            align-items: center;
            justify-items: center;
        }
        #qrcode {
            width: 100%;
            height: 100%;
        }
    </style>
</head>

<body>
    <div id="container">
        <div id="qrcode"></div>
    </div>
    <script src="lib/qrcode.js"></script>
    <script src="js/popup.js"></script>
</body>

</html>